Support response encoding in `select` and `options` JSP form tags

[stonio]

Issued #33023 (with commit e622555) updated Spring's form tags to use the response encoding in most places; however, a few other Spring form tags (such as <form:select> and <form:options>) still ignore the response character encoding.

Examples:

<%-- Select items as List --%>
<form:select path="p" items='${["café", "café crème"]}' />

<%-- Select items as Map --%>
<form:select path="p" items='<%= java.util.Map.of("café", "café au lait") %>'  />

<%-- Options items as Map --%>
<form:select path="p">
    <form:options items='<%= java.util.Map.of("café", "café au lait") %>' />
</form:select>

[github-actions]

Fixed via 335a2c4